Commit e7d5e4b4 authored by Ruslan Baratov's avatar Ruslan Baratov Committed by Brad King

ExternalProject: Re-implement download verification as a dedicated script

Move the content to a `ExternalProject-verify.cmake.in` file and use
`configure_file` to generate the final script.
parent ebcc7027
#=============================================================================
# Copyright 2008-2013 Kitware, Inc.
# Copyright 2016 Ruslan Baratov
#
# Distributed under the OSI-approved BSD License (the "License");
# see accompanying file Copyright.txt for details.
#
# This software is distributed WITHOUT ANY WARRANTY; without even the
# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
# See the License for more information.
#=============================================================================
# (To distribute this file outside of CMake, substitute the full
# License text for the above reference.)
cmake_minimum_required(VERSION 3.5)
if("@LOCAL@" STREQUAL "")
message(FATAL_ERROR "LOCAL can't be empty")
endif()
if(NOT EXISTS "@LOCAL@")
message(FATAL_ERROR "File not found: @LOCAL@")
endif()
if("@ALGO@" STREQUAL "")
message(WARNING "File will not be verified since no URL_HASH specified")
return()
endif()
if("@EXPECT_VALUE@" STREQUAL "")
message(FATAL_ERROR "EXPECT_VALUE can't be empty")
endif()
message(STATUS "verifying file...
file='@LOCAL@'")
file("@ALGO@" "@LOCAL@" actual_value)
if(NOT "${actual_value}" STREQUAL "@EXPECT_VALUE@")
message(FATAL_ERROR "error: @ALGO@ hash of
@LOCAL@
does not match expected value
expected: '@EXPECT_VALUE@'
actual: '${actual_value}'
")
endif()
message(STATUS "verifying file... done")
......@@ -377,6 +377,7 @@ file::
#=============================================================================
# Copyright 2008-2013 Kitware, Inc.
# Copyright 2016 Ruslan Baratov
#
# Distributed under the OSI-approved BSD License (the "License");
# see accompanying file Copyright.txt for details.
......@@ -418,6 +419,9 @@ endif()
set(_ep_hash_algos "MD5|SHA1|SHA224|SHA256|SHA384|SHA512")
set(_ep_hash_regex "^(${_ep_hash_algos})=([0-9A-Fa-f]+)$")
set(_ExternalProject_SELF "${CMAKE_CURRENT_LIST_FILE}")
get_filename_component(_ExternalProject_SELF_DIR "${_ExternalProject_SELF}" PATH)
function(_ep_parse_arguments f name ns args)
# Transfer the arguments to this function into target properties for the
# new custom target we just added so that we can set up all the build steps
......@@ -937,33 +941,22 @@ endfunction()
function(_ep_write_verifyfile_script script_filename LOCAL hash)
if("${hash}" MATCHES "${_ep_hash_regex}")
set(algo "${CMAKE_MATCH_1}")
string(TOLOWER "${CMAKE_MATCH_2}" expect_value)
set(script_content "set(expect_value \"${expect_value}\")
set(succeeded 0)
file(${algo} \"\${file}\" actual_value)
if(\"\${actual_value}\" STREQUAL \"\${expect_value}\")
set(succeeded 1)
endif()
if(\${succeeded})
message(STATUS \"verifying file... done\")
else()
message(FATAL_ERROR \"error: ${algo} hash of
\${file}
does not match expected value
expected: \${expect_value}
actual: \${actual_value}
\")
endif()")
set(ALGO "${CMAKE_MATCH_1}")
string(TOLOWER "${CMAKE_MATCH_2}" EXPECT_VALUE)
else()
set(script_content "message(STATUS \"verifying file... warning: did not verify file - no URL_HASH specified?\")")
set(ALGO "")
set(EXPECT_VALUE "")
endif()
file(WRITE ${script_filename} "set(file \"${LOCAL}\")
message(STATUS \"verifying file...
file='\${file}'\")
${script_content}
")
# Used variables:
# * ALGO
# * EXPECT_VALUE
# * LOCAL
configure_file(
"${_ExternalProject_SELF_DIR}/ExternalProject-verify.cmake.in"
"${script_filename}"
@ONLY
)
endfunction()
......
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